How was the scene in Titanic filmed?

In order to shoot the real location, 20th Century Fox purchased a piece of land with a land area of 6,543.8+0.6 million square kilometers on the Pacific coast of Baja California, Mexico, and established a complete film studio there on May 365.438+0,654.38+0,996. Within four months, a studio the size of a small city was built in the north of Rosarito, including its complete infrastructure and several studios. They built two huge water tanks by blasting. The realistic reconstruction model of Titanic can hold 64 million liters of water. This model can be rotated 270 degrees. Another water tank with a capacity of 22 million liters has a first-class luxury interior decoration. Although the model in the big water tank is completely proportional, Ramon has to make some compromises. For example, lifeboats and chimneys have been reduced by one tenth. Some deck facilities were omitted, and a front deck was also omitted. These omitted parts were later replaced by models. The lifeboat deck and the main deck are both movie stages, and the other parts are steel structures, which contain devices that can tilt the model when shooting sinking scenes. There is also a 50-meter-high crane, which can walk on the track 120 meters long. This crane is not only used as a building tool when building models, but also used for lighting and photography. After the shooting of the corresponding scene was completed, the model ship was dismantled and sold as scrap iron to supplement the shooting cost. [Stunt] There is a huge hydraulic device in the 22-million-liter water tank, which can make the first-class restaurant and its big steps sink into the water at a speed of 30 cm per minute. In the first experiment, the ladder broke away from the fixing device, but no one was injured. The bow of the 223-meter-long Titanic was found to be too big when it sank into the water. It's like a shock absorber in water. In order to let it sink into the water, Cameron ordered the contents to be emptied, and he personally broke some ship windows. After the restaurant was completely submerged, the film crew spent three days filming how the treasure explorer Lovel's ROV was inside the modern adventure ship. The scene after the sinking of Titanic was shot in a 6.5438+0.3 million liter water tank. It is the smallest water tank in the shooting scene. Special powder was used on the bodies floating in the water. These powders crystallize when exposed to water. Through these powders and using wax on hair and clothes, the actors look as if they are frozen to death. Cameron wanted to promote visual effects through this film, so he let his company's digital field continue to develop its achievements in Abyss and Terminator 2: Judgment Day. In particular, it realistically simulates the function of water. So far, the sea is generally simulated by shooting a small water surface, and then magnified in slow motion, but the effect is not very good. Cameron asked his camera crew to shoot a 13 meter long model through motion capture. Water and smoke were added digitally later. They use military calculation algorithms for digital simulation. In order to improve the authenticity of the whole result, there are other things that are shot and added through motion capture. Visual Effect Monitoring Roborough Gato digitized the faces of the actor, himself and his children to enhance the authenticity of the digital simulation. In addition, there is a 20-meter-long model of Titanic, which can be broken in the middle. This is the only model that can be launched. The scene in the machine cabin is the machine cabin in Jeremy Bryan, and then the models and actors take pictures in front of the blue screen. In order to save money, there is only one model in the lounge of the first class, and then an actor's performance shot in front of the blue screen is added. The simulation used 60 computers and a rare Linux operating system at that time. So shooting can be synthesized by computer.